1A
DTC P0200: Injector Circuit
NOTE:
• Conditions for applying the fault finding procedure to the DTC stored:
The DTC is detected when engine is running at idle speed.
• Priority when dealing with a number of DTCs:
If DTC P0200 and either one of DTC P0201, DTC P0202, DTC P0203 or DTC P0204 are detected, the fault finding procedure remains the same, but the faulty injector has to be identified.
• If DTC P0200 is detected, engine noise, unstable engine speed and reduced engine performance.
Wiring Diagram
For wiring circuit and connector number, refer to “K9K Engine (Type 5)” in A-4 Engine Control System Circuit Diagram .
Detecting Condition
Status displayed on SUZUKI scan tool Detecting condition Indicator / Warning light operation
CC 1 Short circuit to 12 V MIL and red stop warning light (gravity 2 fault) light up
CC0 Short circuit to ground
Troubleshooting
Switch off the ignition and check the connection and condition of the injector connectors.
Repair if necessary.
Switch off the ignition, disconnect the injectors (or the injector identified by DTC P0201, DTC P0202, DTC P0203 or DTC P0204) and switch the ignition back on.
Check DTC.
If DTC P0200 is detected, carry out troubleshooting for detected DTC P0200.
If DTC P0200 is not detected, carry out troubleshooting for not detected DTC P0200.
Troubleshooting for Detected DTC P0200
The injectors are not faulty.
Check the condition and connection of the ECM “C47” connector.
Repair if necessary.
Check for insulation, continuity and absence of interference resistance of the connections:
• Between “C47-48” terminal of ECM connector and “C36-1” terminal of injector No.1 connector
• Between “C47-47” terminal of ECM connector and “C36-2” terminal of injector No.1 connector
• Between “C47-42” terminal of ECM connector and “C37-1” terminal of injector No.2 connector
• Between “C47-41” terminal of ECM connector and “C37-2” terminal of injector No.2 connector
• Between “C47-46” terminal of ECM connector and “C38-1” terminal of injector No.3 connector
• Between “C47-45” terminal of ECM connector and “C38-2” terminal of injector No.3 connector
• Between “C47-44” terminal of ECM connector and “C39-1” terminal of injector No.4 connector
• Between “C47-43” terminal of ECM connector and “C39-2” terminal of injector No.4 connector
Repair if necessary.
If DTC P0200 is still detected, replace the ECM.
Troubleshooting for Not Detected DTC P0200
Injector(s) fault.
Replace the injector, identified by DTC P0201 to DTC P0204 if detected.
If none of the faults identifying the faulty injector circuit are detected.
• Switch off the ignition
• Reconnect one of the four injectors
• Switch on the ignition again.
If DTC is detected, replace the reconnected injector.
Carry out the same procedure for the remaining injectors.
After Repair
Deal with any faults detected by SUZUKI scan tool.
Clear the DTC.
Carry out a road test followed by another check with the SUZUKI scan tool.